Experimental and molecular dynamics simulation investigation on filler reinforcement for property enhancement of PU composites

被引：7
作者：
Deng, Mei [1 ]
Cao, Xuejuan [2 ]
He, Zhen [1 ]
Wei, Kuiling [1 ]
Tang, Boming [1 ]
机构：
[1] Chongqing Jiaotong Univ, Sch Civil Engn, Chongqing, Peoples R China
[2] Chongqing Jiaotong Univ, Sch Mat Sci & Engn, Chongqing 400074, Peoples R China
来源：
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2023年 / 30卷 / 13期
关键词：
Filler reinforcement; PU composite; ultra-thin wearing course; interface interaction; molecular dynamics simulation; POLYURETHANE; BEHAVIOR; PERFORMANCE; ADSORPTION; MIXTURES; STRESS;
D O I：
10.1080/15376494.2022.2062803
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of filler modification on polyurethane (PU) properties was investigated by experimental and molecular dynamics simulation. Ultra-thin wearing course (PUTWC) was prepared using PU composite as a binder. The results indicated that, compared with composite with mineral powder, the tensile strength and elongation at break of PU composite (PUNC) containing CaCO3 increased by 32.7% and 15.8%, also exposed an appropriate viscosity. Stronger interaction energy and smaller free volume distribution existed in PUNC interface, which was obviously related to the PU soft segment. Additionally, prepared PUTWC using the single-layer paving method and PUNC of 1 kg. (m(2))(-1) showed high-skid resistance.
引用
收藏
页码：2780 / 2792
页数：13
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